RAM 6.0 BUX II Series Guia do Utilizador descarregar pdf (Página 81)

3 Porting a BSP to Custom Hardware

3.3 Finalizing Your BSP

However, this file should not be used by default. The file may also be commented

out in the source file using a macro such as

#ifdef POLLED_CONSOLE_OUTPUT.

3.3.2 Projects

The Wind River Workbench documentation contains the necessary information for

creating, configuring, and building projects. These steps can all be handled

through the project facility. For more information, see the Wind River Workbench

User’s Guide or online help.

3.3.3 Adding Other Timers

Your driver can include an auxiliary clock driver—if your target hardware

supports it—as well as a high-resolution timestamp driver.

The auxiliary clock is used by the VxWorks spy utility, and also by certain Wind

River host tools. For more information on the auxiliary clock interface, see the

reference entries for the various sysAuxClk*() routines and the VxWorks Device

Driver Developer’s Guide.

The auxiliary clock interface consists of the following routines:

The high-resolution timestamp driver is currently used only by the Wind River

System Viewer, but writing a timestamp driver can be useful to you for future

debugging and can also be useful for application developers using your BSP. The

interface can be found in the header file target/h/drv/timer/timestampDev.h.

sysAuxClkConnect( ) connect a routine to the auxiliary clock interrupt

sysAuxClkDisable( ) turn off auxiliary clock interrupts

sysAuxClkEnable( ) turn on auxiliary clock interrupts

sysAuxClkInt( ) handle auxiliary clock interrupts

sysAuxClkRateGet( ) return the current auxiliary clock interrupt rate

sysAuxClkRateSet( ) set the auxiliary clock interrupt rate

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RAM 6.0 BUX II Series Guia do Utilizador Página 81